Abstract: A communications system may include one or more processors coupled to memory. The one or more processors may be collectively operable to execute a communications environment. The communications environment may be operable to receive a request to place an outbound call from an outbound telephone number to a specified telephone number. The communications environment may be operable to assign a caller identification number from a set of caller identification numbers to the outbound call based on one or more criterion associated with at least one prior call relating to the specified telephone number. A method of caller identification is also disclosed.